Glass manufacturing – Processes of manufacturing fibers – filaments – or preforms – With measuring – controlling – sensing – programming – timing,...
Reexamination Certificate
2011-03-08
2011-03-08
Hoffmann, John (Department: 1741)
Glass manufacturing
Processes of manufacturing fibers, filaments, or preforms
With measuring, controlling, sensing, programming, timing,...
C065S378000, C065S407000, C385S096000
Reexamination Certificate
active
07900480
ABSTRACT:
A method of determining a heating amount adequate for fusion splicing is provided. In the method, the melting state of the end portions of optical fibers can be monitored on a real time basis so that fewer tests need to be performed. A method of fusion splicing and a fusion splicer are also provided. In the method of determining the heating amount, end portions of optical fibers that are placed opposite one another with a predetermined gap therebetween are heat-melted; an image of portions to be heat-melted is observed with an image-capturing device; and a luminance, a light emitting width, or a change in the luminance or the light emitting width is measured. In the method of fusion splicing, optical fibers are heat-melted with the heating amount that is determined using test fibers in advance, or determined using the optical fibers to be fusion spliced.
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Machine translation of JP 2685152 B, translation created May 13, 2010, pp. 1-3.
Notification of Reasons for Rejection in the corresponding Japanese Application No. 2004-376839, dated Jan. 19, 2010.
Notification of Reasons for Rejection in the corresponding Japanese Application No. 2004-376839, dated May 25, 2010.
Global IP Counselors, LLP
Hoffmann John
Sumitomo Electric Industries Ltd.
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